US Bridges

FM over Hickory Creek

FairPosted for load

Marion County, Iowa · 074193304 · Structure no. 000000000239030

Built
1953
72 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Hickory Creek is a concrete continuous slab carrying FM over Hickory Creek in Marion County, Iowa. It was built in 1953, so it is 72 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 90 vehicles a day, projected to reach 90 by 2043. The structure is 128 ft (39 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesFM
CrossesHickory Creek
Location074193304
RouteCounty Highway 0
CountyMarion County
StateIowa
Coordinates41.16931, -93.05667
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33 US tons
Inventory rating11 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic90 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$775,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Hickory Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is FM over Hickory Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does FM over Hickory Creek carry?

About 90 vehicles per day (2022 count).

How long is FM over Hickory Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 22 ft wide.

Who owns FM over Hickory Creek?

It is owned by the County Highway Agency.